Formulas and Equations in Science

Formula for Density

• Density = Mass + Volume
• Density = Volume / Mass
• Density = Mass x Volume
• Density = Mass / Volume

How much stuff an object has in a unit volume, gives

• Density
• Weight
• Mass
• Volume

Density of water is

• 1.5 g/cm³
• 2 g/cm³
• 0.5 g/cm³
• 1 g/cm³

Density is represented as

• Density = Mass / Volume

  ρ

• Density = Mass x Volume

  ρ

Density and volume is

• 
  directly proportional

• 
  inversely proportional

Volume to Density can be mathematically expressed as

• V=M/ρ

• V=Mρ

A rock has a mass of 210 grams and occupies a volume of 70 cm³. What is its density?

• 4 g/cm³
• 3 g/cm³
• 5 g/cm³
• 2 g/cm³

An unknown liquid occupies a volume of 5 ml and has a mass of 40 grams. Find its density.

• 10 g/ml
• 6 g/ml
• 8 g/ml
• 4 g/ml

A rectangular solid of unknown density is 5 meters long, 2 meters high and 4 meters wide. The mass of this solid is 300 grams. Given this information for this homogeneous (alike throughout) material, calculate its density.

• 0.5 kg/m^3
• 0.03 kg/m^3
• 0.15 kg/m^3
• 0.0075 kg/m^3

Answer explanation

7.5g is converted to kg

Divide the number of grams by 1,000.

How many grams in 1 kilogram?

• 1500 grams
• 1 gram
• 1000 grams
• 500 grams